A rapidlygrowing approach in product design and manufacture, with great potential toimprove customer value, is mass customization. The possibility to design andmanufacture highly customer adapted products brings a competitive edge tomanufacturing companies and is in some areas a necessity for doing business. In this paper, an approach for documentation andknowledge management of systems supporting the design and manufacture ofcustomized products is explored. As the governing framework and models are updated and refined due toshifting prerequisite, the system and hence the solutions generated for asingle specification will change over time. This affects product management andthe ability to meet legislation and customers’ requirements regarding documentationand traceability, as well as the company’s ability to provide services,maintenance and supply spare parts. A solution has been developed for an industrialcase with required functionality for capturing, structuring, searching,retrieving, viewing, and editing a system’s embedded information and knowledge.The objective is to enable and facilitate system maintenance and updating andsupport the reuse of functions and system encapsulated generic designdescriptions in future systems.